Question

Which of the following $0.1M$ solution will show maximum boiling point?

• A. Sodium chloride
• B. Copper chloride
• C. Magnesium sulphate
• D. Chromium sulphate

Answer 1

Answer: (D)

Sodium chloride ; NaCl
Copper chloride ; Cu₂Cl₂
Magnesium sulphate ; MgSO 4
Chromium sulphate ; Cr₂(SO₄)₃
As maximum number of particles (i.e. ions) will be obtained when Cr₂(SO₄)₃ is dissolved in water. Therefore, maximum boiling point will be observed in this case as elevation in boiling point is a colligative property and depends on the number of particles.